(under subclass 40) Subject matter wherein the power transmitting mechanism is of the friction type.
SEE OR SEARCH CLASS
192, Clutches and Power-Stop Control,
.02, .098, for mechanism for the joint control of a motor and clutch, subclass 3.5, for mechanism for the joint control of the power transmission and a brake, subclasses 12+, for mechanism having a clutch and brake applied alternately to drive and retard the mechanism, subclasses 30+, for clutches, see indented subclasses 103+, for speed responsive clutches.
475, Planetary Gear Transmission Systems or Components,
183+, for frictional planetary gearing. 476, Friction Gear Transmission Systems or Components,
11, for electric or magnetic control of friction gear transmissions.
